Pick out the wrong statement about the recycle stream in a process ?

A. Recycling in a process stream helps in utilising the valuable reactants to the maximum with
minimum loss of reactants
B. The ratio of the quantity of a reactant present in the reactor feed of a recycling operation to the
quantity of the same reactant entering the process as fresh feed is called combined feed ratio

One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m3. It cools to 98°C; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m3. The latent heat of condensation (kJ/kg-1 ) under these conditions is___________________?

A. 40732
B. 2676
C. 2263
D. 540

Cp – Cv for an ideal gas is equal to________________?

A. R
B. R/2
C. 2R
D. 3R

The reaction A + B → C has been conducted in a reactor as shown below. The numbers of balances (material) that can be made around the reactor are________________?

A. 1
B. 2
C. 3
D. 4

Viscosity of atmospheric air may be about _____________ centipoise?

A. 0.015
B. 1.5
C. 15
D. 150

Boiling point of a non-homogeneous mixture of immiscible liquids is _____________ that of any one of its separate components?

A. Lower than
B. Higher than
C. Equal to
D. Either A. or B.; depends on the liquids

For a reaction, X → Y, if the concentration of ‘X’ is tripled; the rate becomes nine times. The order of reaction is__________________?

A. 0
B. 1
C. 2
D. 3

Which of the following expressions defines the Baume gravity scale for liquids lighter than water ?

A. °Be = (140/G) – 130
B. °Be = 200(G-1)
C. °Be = 145 – (145/G)
D. °Be = (400/G) – 400

Heat of reaction is a function of the___________________?

A. Pressure
B. Temperature
C. Both A. & B.
D. Neither A. nor B.

Addition of zircon to silica refractory brick improves its_________________?

A. Crushing strength
B. Resistance to slag attack
C. Both A. and B.
D. Neither A. nor B.